CN2079257U - Ramming type multistep water-coal mud atomizing nozzle - Google Patents
Ramming type multistep water-coal mud atomizing nozzle Download PDFInfo
- Publication number
- CN2079257U CN2079257U CN 90204730 CN90204730U CN2079257U CN 2079257 U CN2079257 U CN 2079257U CN 90204730 CN90204730 CN 90204730 CN 90204730 U CN90204730 U CN 90204730U CN 2079257 U CN2079257 U CN 2079257U
- Authority
- CN
- China
- Prior art keywords
- vapour
- coal
- slurry
- shell
- spraynozzle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003245 coal Substances 0.000 title abstract description 4
- 239000007921 spray Substances 0.000 claims abstract description 16
- 239000003250 coal slurry Substances 0.000 claims description 26
- 230000000694 effects Effects 0.000 claims description 9
- 230000003116 impacting effect Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 10
- 238000000889 atomisation Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The utility model discloses an impact-type multi-step atomizing nozzle for the water-coal mud. The impact-type multi-step atomizing nozzle comprises a nozzle holder, an inner mixing piece, a T-shaped atomizing piece, a mixing chamber and an inner impact reflector which are arranged in turn and also comprises a casing. The center jetting hole of the inner mixing piece and the T-shaped atomizing piece is communicated with the mixing chamber, and the inner side of the casing and the outer side of the inner mixing piece compose an air (vapor) chamber. The outer end of the nozzle holder is connected with a spray gun, and the inner side of the spray gun is provided with a scratch awl or the center jetting hole. The utility model has the advantages of simple structure, good block-proof and anti-wear performance, good atomizing performance, stable combustion, high combustion efficiency and long service life.
Description
The utility model belongs to the coal slurry atomising device.
COAL-WATER SLURRY TECHNOLOGY is through research in the past few years, the domestic and international nozzle that has developed number of different types, typical pattern has: execute flow pattern, Y type and T type etc., mix type and external mixing type, exterior mixing nozzle gas consumption rate height usually in can being divided into again according to atomizing type, but it is not serious to wear and tear.Interior type nozzle gas (vapour) the consumption rate of mixing is low, but serious wear.The three big problems that have were during current water-coal-slurry nozzle was used: 1. wear problem (service life); 2. 3. blockage problem takes off fire.Have good atomizing, flammability and not susceptible to plugging advantage as the cyclone-type nozzle, but be easy to wearing and tearing.Y type nozzle, atomization is better, but is easy to stop up and take off fire.
The purpose of this utility model is in the problem of the pluses and minuses of summing up all kinds of nozzles and the existence of practical water-coal-slurry nozzle, and update, provide a kind of impacting type multistage atomizing block-resistant type water-coal-slurry nozzle through overtesting, the water-coal-slurry nozzle identical with this structure do not found in smooth combustion in Industrial Boiler by retrieval.
Elaborate below in conjunction with accompanying drawing.
Accompanying drawing is the multistage water-coal-slurry spraynozzle of an a kind of impacting type schematic diagram.
The multistage water-coal-slurry spraynozzle of impacting type, have successively nozzle block 7, interior mixed part 9, T-shaped atomizing part 10, mixing chamber 12, inner impact reflector 13, or have successively nozzle block, interior mixed part, a T-shaped atomizing part, mixing chamber or have successively nozzle block, interior mixed part, mixing chamber, inner impact reflector, and be provided with shell 8, interior mixed part, T-shaped atomizing part center of orifices communicate with mixing chamber, formation gas (vapour) chamber, the inboard and interior mixed part of the shell outside. Said shell is made up of shell and outer cover 11 or synthetic one, and shell and outer cover end have with the spray orifice that axially forms an angle or have and axially form an angle and the spray orifice of certain corner is tangentially arranged. The nozzle block centre bore is provided with annular all around or multiply air inlet (vapour) passage communicates with gas (vapour) chamber. Interior mixed part is the stairstepping pipe fitting, and the ladder place has air inlet (vapour) hole and communicates with gas (vapour) chamber and mixing chamber respectively, is provided with annular groove and annular or multiply air inlet (vapour) T shape spout around the T-shaped atomizing part center of orifices. Nozzle block outer end and spray gun join, and are provided with cleansing pin 14 or core jet pipe in the spray gun. Shell or outer cover end are provided with outer impact effect device. Interior mixed part and T-shaped atomizing part are single-stage or multistage.
Coal slurry enters spray gun from pulp-inlet pipe 5 and enters interior mixed part center of orifices through the centre bore of nozzle block. The slurry that spray orifice comes out is subjected to carrying out the atomizing first time along the impact of angled multiply gas (vapour) stream of circumference at once, and gas (vapour) is to enter spray gun from air inlet (vapour) pipe 6 to enter gas (vapour) chamber through annular or multiply gas (vapour) hole around the nozzle block. In like manner can add again one or more levels atomizing, also can not add. In the outlet of interior mixed part, add one or more levels from the gas (vapour) of ring-type or the T-shaped atomizing part ejection of multiply, further impact gas (vapour) pulp mixture. Mixed gas (vapour) pulp mixture directly strikes on the inner impact reflector, again atomizing of ejection the hole of gas (vapour) pulp mixture from outer cover that bounce-back is come out, and by atomizing repeatedly, coal slurry has obtained good atomizing. Gas (vapour) pulp mixture that comes out from shell or outer cover end spray orifice can clash into outer impact effect device again, and gas (vapour) pulp mixture that bounce-back is come can further atomize, or need not outer impact effect device. The Main Function that uses outer impact effect device is to wish by bump, reduce the axial velocity of gas (vapour) pulp mixture, so that in the situation that does not affect (even improve) atomized particle size, the method for the axial velocity by reducing gas (vapour) pulp mixture reduces coal slurry and takes off fiery distance.
For when the coal slurry nozzle stops up, spray gun needn't be extracted burner cleaning tamper out, adorns the cleansing pin 14 or the core jet pipe of an activity specially in coal slurry spray gun slurry pipe, and the cleansing pin system is made up of tumbler 1 fixture 4 and gland 2 and sealing ring 3.When the coal slurry nozzle stops up, drive cleansing pin toward last pushing away as long as rotate tumbler, or, just the coal grain or the coal slurry group of stopping up can be got through in core jet pipe ventilation (vapour).As required, promote cleansing pin and can use hand push, can advance with the gong line and also can drive pushing mechanism with motor.
About the nozzle life-span, the design of this nozzle is adopted two kinds of thinkings promptly 1. can not grind and 2. is not afraid of the method that mill combines.What is called can not be ground, and place promptly easy to wear studs with high-abrasive material.What is called is not afraid of mill, is exactly nozzle when design, and easily mill size partly allows bigger variation, that is to say, when nozzle ground easily that partly wearing and tearing are very big, nozzle still normally used, and not causing atomizing to worsen.
For the atomization quality that guarantees nozzle and enough service life, can be in gas (vapour) road, gas (vapour) pulp mixture passage and impact effect body will be inlayed high-abrasive material (metal or pottery).
In order to design big capacity nozzle, can be with a plurality of in parallel uses of above-mentioned nozzle.
The coal slurry nozzle characteristic of this kind pattern is:
1. the full-bodied coal slurry that can atomize, coal slurry flow velocity low pressure drop in nozzle is little.
2. have multistage atomizing, clash into repeatedly, atomization is good.
3. having inside and outside impact effect device has been equivalent to increase one-level not consume atomizing energy exchange, gas (vapour) the consumption rate of gas (vapour) low.
4. just can change atomizing angle easily as long as change outer cover.
5. this nozzle is based on the strength atomizing, mechanical atomization be assist, nozzle, load adjustment ability is good.
6. the coal slurry passage is thick, extremely is difficult for stopping up.
7. can mix coal slurry nozzle cleansing pin easily,, also can get through easily in case stop up.
8. outer impact effect device or two corner outer cover can lower the axial velocity of coal slurry mist torch greatly, can reduce the distance of dewatering greatly.
9. adopt guide hole, interior mixed pattern, simple in structure.
10. the mode that adopts " can not grind " to combine with " not being afraid of mill " is so the nozzle life-span is very long.
Claims (6)
1, the multistage water-coal-slurry spraynozzle of a kind of impacting type is characterized in that it has nozzle block [7], interior mixed part [9], T type atomizing part [10], mixing chamber [12], inner impact reflector [13] successively; Or have nozzle block, interior mixed part, T type atomizing part, mixing chamber successively; Or have nozzle block, interior mixed part, mixing chamber, inner impact reflector successively, and be provided with shell [8], interior mixed part, T type atomizing part center of orifices communicates with mixing chamber, formation gas (vapour) chamber, the inboard and interior mixed part of the shell outside.
2, the multistage water-coal-slurry spraynozzle of a kind of impacting type according to claim 1, it is characterized in that said shell is made up of shell and outer cover (11) or is combined into one, shell or outer cover end have with the spray orifice that axially forms an angle or have and axially form an angle and the spray orifice of certain corner is tangentially arranged.
3, the multistage water-coal-slurry spraynozzle of a kind of impacting type according to claim 1 and 2 is characterized in that said interior mixed part and T type atomizing part are single-stage or multistage.
4, the multistage water-coal-slurry spraynozzle of a kind of impacting type according to claim 1 and 2, it is characterized in that said nozzle block centre bore is provided with annular all around or multiply air inlet (vapour) passage communicates with gas (vapour) chamber, mixing part in said is the stairstepping pipe fitting, the ladder place has air inlet (vapour) hole and communicates with gas (vapour) chamber and mixing chamber respectively, is provided with annular groove and annular or multiply air inlet (vapour) T type spout around the said T type atomizing part center of orifices.
5, the multistage water-coal-slurry spraynozzle of a kind of impacting type according to claim 1 and 2 is characterized in that said shell or outer cover end are provided with outer impact effect device.
6, the multistage water-coal-slurry spraynozzle of a kind of impacting type according to claim 1 and 2 is characterized in that said nozzle block outer end and spray gun join, and is provided with cleansing pin (14) or core jet pipe in the spray gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90204730 CN2079257U (en) | 1990-04-10 | 1990-04-10 | Ramming type multistep water-coal mud atomizing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90204730 CN2079257U (en) | 1990-04-10 | 1990-04-10 | Ramming type multistep water-coal mud atomizing nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2079257U true CN2079257U (en) | 1991-06-19 |
Family
ID=4885646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90204730 Withdrawn CN2079257U (en) | 1990-04-10 | 1990-04-10 | Ramming type multistep water-coal mud atomizing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2079257U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913904A (en) * | 2012-11-05 | 2013-02-06 | 徐州燃控科技股份有限公司 | Multistage atomization coal water slurry spray gun with characteristics of double steam passages, central slurry inflow and adjustable load |
| CN102913905A (en) * | 2012-11-05 | 2013-02-06 | 徐州燃控科技股份有限公司 | Dual-steam-passage outer-pipe-admission load-adjustable multi-stage atomizing water-coal-slurry spray gun |
| CN102980188A (en) * | 2012-12-19 | 2013-03-20 | 青岛海众环保锅炉股份有限公司 | Water-coal-slurry spray gun and water-coal-slurry boiler |
| CN106813240A (en) * | 2017-03-13 | 2017-06-09 | 宁波丰基特种阀门有限公司 | Coal nozzle |
| US10287522B2 (en) | 2013-01-31 | 2019-05-14 | General Electric Company | System and method for preparing coal water slurry |
-
1990
- 1990-04-10 CN CN 90204730 patent/CN2079257U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913904A (en) * | 2012-11-05 | 2013-02-06 | 徐州燃控科技股份有限公司 | Multistage atomization coal water slurry spray gun with characteristics of double steam passages, central slurry inflow and adjustable load |
| CN102913905A (en) * | 2012-11-05 | 2013-02-06 | 徐州燃控科技股份有限公司 | Dual-steam-passage outer-pipe-admission load-adjustable multi-stage atomizing water-coal-slurry spray gun |
| CN102913905B (en) * | 2012-11-05 | 2016-05-11 | 徐州科融环境资源股份有限公司 | Double flow road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun |
| CN102913904B (en) * | 2012-11-05 | 2016-05-11 | 徐州科融环境资源股份有限公司 | Load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, double flow road |
| CN102980188A (en) * | 2012-12-19 | 2013-03-20 | 青岛海众环保锅炉股份有限公司 | Water-coal-slurry spray gun and water-coal-slurry boiler |
| US10287522B2 (en) | 2013-01-31 | 2019-05-14 | General Electric Company | System and method for preparing coal water slurry |
| CN106813240A (en) * | 2017-03-13 | 2017-06-09 | 宁波丰基特种阀门有限公司 | Coal nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |